A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 6610-01-649-5326
NSN 5998-01-474-9065
NSN 6110-01-247-9168
NSN 7035-01-173-5503
NSN 6150-01-509-1524
NSN 5905-00-499-7787
NSN 5905-01-322-7983
NSN 5985-01-090-0098
NSN 6685-01-285-7266
NSN 6610-01-213-9288
NSN 5930-01-597-9675
NSN 5950-01-156-8975